[keycloak-dev] Create "online session" from offline session

[Marek Posolda]

I suggest to use the flow like this:
1) Exchange the offline token for the 3 tokens, which will include the 
triplet of (access token, id token, offline token).

2) Then you can pass the just retrieved IDToken in the authentication 
request in the "id_token_hint" parameter.

3) Then you will need to create Authenticator (see our docs/quickstarts 
for more details), which will be able to see if "id_token_hint" was sent 
and then verify this token and authenticate user if it was ok. You can 
probably use some existing code from IDToken introspection endpoint. If 
parameter is not used, authenticator can be just ignored during the 
authentication flow.

4) As last step, you will need to add this authenticator to the browser 
authentication flow.

This will cause that if IDToken is sent, it will be able to use it to 
authenticate the user and hence new UserSessionModel (+cookies and all 
of this) will be properly created by Keycloak itself.

If you manage to make this working, we will be happy if you contribute 
it in the PR :) As this is described in the OIDC specification (see 
https://openid.net/specs/openid-connect-core-1_0.html#AuthRequest ), but 
we don't yet implement it.

If you don't want to send PR, you may implement it a bit easier and 
differently in a non-OIDC standard way (EG. pass the offline_token 
directly instead of IDToken in step 2).

Marek

On 02/10/18 08:24, Niels Bertram wrote:
> Hi devs,
>
> we are trying to turn an offline session back into an "online session" for
> which we can generate cookies and send them to the clients browser.
>
> I tried to create a user session with AuthenticationManager but for some
> reason the created session is not showing up as a proper in the user
> account management section. Is there anything that needs to happen after
> this session is created to make it a normal user session?
>
> AuthenticatedClientSessionModel clientSession =
> session.sessions().createClientSession(realm, client, offlineSession);
>
> We have a mobile app that uses offline_access to create an "always logged"
> in experience for the app user. However when we open a SSO-enabled website
> in the app (WebView), there is no KEYCLOAK_SESSION cookie to allow the web
> page to initiate a successful pre-auth check.
>
> We wrote a custom resource which we call in our webview to "redirect" the
> user to an SSO enabled site:
>
> 1. authenticate the user
>
> AuthResult auth = new AppAuthManager().authenticateBearerToken(session)
>
> 2. load a valid userSession
>
> UserSessionModel userSession = session.sessions().getUserSession(realm,
> token.getSessionState());
>
> 3. create the session cookies
>
> AuthenticationManager.createLoginCookie(session, realm, user, userSession,
> ctx.getUri(), ctx.getConnection());
>
> 4. forward the user to the SSO enabled website
>
> 5. SSO enabled website would do a normal pre-auth check with prompt=none
>
> There was a similar conversation about the "lost" session in KEYCLOAK-4201
> <https://issues.jboss.org/browse/KEYCLOAK-420>, but that one did not go as
> far as creating a new session.
>
> Anyone of you got any clever idea on how do "preload" a valid SSO session
> into a WebView?
>
> Cheers,
> Niels
>
> PS. we are on RH-SSO 7.2.4 so roughly Keycloak 3.4.3
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